If you search the website for Dendroxena quadrimaculata you will see it is listed as an Essex Red Data List species, with an Essex 1950-1969 record; VC18 pre-1970 record; VC19 pre-1970 record. So your find is a good one! I will notify Peter Hammond, the County Recorder for beetles.
Your Forum
This forum has now been more or less replaced by the Club's Facebook page at 
The weblog below is for naturalists to use to report interesting sightings, ask questions, report on field meetings and generally post pictures and any information or questions generally relevant in some way to the wildlife and geology of Essex. You will need to register and be logged-on to post to the forum, and you need to upload pictures first, for use in posts. Find out more
The weblog below is for naturalists to use to report interesting sightings, ask questions, report on field meetings and generally post pictures and any information or questions generally relevant in some way to the wildlife and geology of Essex. You will need to register and be logged-on to post to the forum, and you need to upload pictures first, for use in posts. Find out more